The great tragedy of Science—the slaying of a beautiful hypothesis by an ugly fact.  

The true measure of a leader is not how many followers they have, but how many leaders they create.

There is nothing which I dread so much as a division of the republic into two great parties, each arranged under its leader, and concerting measures in opposition to each other.

宇宙不仅比我们想象的更奇怪，它比我们能够想象的还要奇怪。